transduction

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transduction

 [trans-duk´shun]
the transfer of a genetic fragment from one microorganism to another by bacteriophage.

trans·duc·tion

(tranz-dŭk'shŭn),
1. Transfer of genetic material (and its phenotypic expression) from one cell to another by viral infection.
2. A form of genetic recombination in bacteria.
3. Conversion of energy from one form to another.
[trans- + L. duco, pp. ductus, to lead across]

transduction

/trans·duc·tion/ (-duk´shun)
1. a method of genetic recombination in bacteria, in which DNA is transferred between bacteria via bacteriophages.
2. the transforming of one form of energy into another, as by the sensory mechanisms of the body.

sensory transduction  the process by which a sensory receptor converts a stimulus from the environment to an action potential for transmission to the brain.

transduction

(trăns-dŭk′shən, trănz-)
n.
2. The transfer of genetic material from one cell to another, especially a bacterial cell, through the use of a bacteriophage.

trans·duc′tion·al adj.

transduction

[-duk′shən]
a method of genetic recombination by which DNA is transferred from one cell to another by a viral vector. Various bacteriophages transfer DNA from one species of bacteria to another.

trans·duc·tion

(trans-dŭk'shŭn)
1. Transfer of genetic material (and its phenotypic expression) from one cell to another by viral infection.
2. A form of genetic recombination in bacteria.
3. Conversion of energy from one form to another.
[trans- + L. duco, pp. ductus, to lead across]

transduction

1. The conversion of energy in one form into energy in another.
2. The transfer of a gene from one bacterial host to another by means of a phage.
3. The transfer of a gene from one cell host to another by a retrovirus.

transduction

  1. the transfer of DNA from one bacterium to another, using a VIRUS as a vector. The donor is subjected to LYSIS, the recipient is infected with a transducing phage. See GENERALIZED TRANSDUCTION, SPECIALIZED TRANSDUCTION.
  2. the process of relaying a signal (e.g. a hormone) to an effector system to stimulate the appropriate cellular response.
  3. a process involved in conversion of one form of energy (e.g. light) into another (e.g. chemical).

transduction 

Generally, the conversion of one form of energy into another. Example: the transformation of light energy into receptor potentials in the photoreceptors of the retina (also called phototransduction). The absorption of light by the pigments of the photoreceptors triggers a cascade of biochemical events that leads to a change in ionic fluxes across the plasma membrane and to a change in resting potential from around −40 mV in the dark, to around −70 mV in light, that is a hyperpolarization of the cells. See depolarization; hyperpolarization; receptor potential; visual pigment.

transduction

the transfer of a genetic fragment from one bacterium to another by bacteriophage.
References in periodicals archive ?
While phototransduction occurs in the OS domain of PRCs, aerobic metabolism occurs in the ellipsoid domain which is rich in mitochondria (55-85% of ellipsoid volume in macaques, Hoang et al.
Fundamentally, the basic biophysics of nonvisual phototransduction needs to be understood, that is, its absolute, spectral, spatial, and temporal response characteristics.
Not only did we find opsin in the sensory neurons that connect to cnidocytes in the hydra, but we also found other components of phototransduction in these cells," Dr Plachetzki said.
Studies of spider phototransduction cascades and opsin proteins began relatively recently.
Phototransduction genes in the assembly were identified using phylogenetically informed annotation (PIA) by identifying query contigs phylogenetically placed close to landmark sequences with known functions; query contigs with long branches were not included (Speiser et al.
Many of these opsins appear to have diverged at key spectral tuning and signal phototransduction sites (Porter et al.
This is a reasonable starting point because, despite the morphological diversity and nonhomology of eyes, it is well documented that the majority of eumetazoans use an opsin-based phototransduction system (Feuda et al.
1997) revealed the first phototransduction cascade involving [G[alpha].
In this study, we identify expressed phototransduction genes from a diversity of copepod species as a first step in understanding the molecular underpinnings supporting the function of copepod photoreception.
Electroretinograms and immunocytochemistry confirmed that the light organ tissues do indeed respond directly to light stimuli and express phototransduction proteins in the crypt spaces.
Usage of "photoreceptor" to refer to these light-direction-sensitive organs is unfortunate because that term has long been applied to the part of the nerve cell that absorbs light and initiates phototransduction (Eakin, 1968, 1982; Coomans, 1981; Land, 1981; Burr, 1984a).
The experimental temperature increase likely accelerated the phototransduction cascade, as our [Q.